layout(location = ATTRIBUTE_LOCATION_POSITION) in vec3 a_Position;
layout(location = ATTRIBUTE_LOCATION_POSITION_64LOW) in vec2 a_Position64Low;
layout(location = ATTRIBUTE_LOCATION_COLOR) in vec4 a_Color;
layout(location = ATTRIBUTE_LOCATION_SIZE) in float a_Size;
layout(location = ATTRIBUTE_LOCATION_NORMAL) in vec3 a_Normal;

out vec4 v_Color;

#pragma include "projection"
#pragma include "light"
#pragma include "picking"

void main() {
  vec4 pos = vec4(a_Position.xy, a_Position.z * a_Size + (1.0 - a_Position.z) * extrusionBase, 1.0);

  vec4 project_pos = project_position(pos, a_Position64Low);
  float lightWeight = calc_lighting(project_pos);
  v_Color = a_Color;
  v_Color = vec4(v_Color.rgb * lightWeight, v_Color.w * opacity);

  gl_Position = project_common_position_to_clipspace(vec4(project_pos.xyz, 1.0));

  setPickingColor(a_PickingColor);
}